• 제목/요약/키워드: Discrimination Factor

검색결과 239건 처리시간 0.028초

한국어판 야식증후군 측정도구의 신뢰도, 타당도 및 문항반응이론에 의한 문항분석 (Psychometric Properties and Item Evaluation of Korean Version of Night Eating Questionnaire (KNEQ))

  • 김범종;김인자;최희정
    • 대한간호학회지
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    • 제46권1호
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    • pp.109-117
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    • 2016
  • Purpose: The aim of this study was to develop a Korean version of Night Eating Questionnaire (KNEQ) and test its psychometric properties and evaluate items according to item response theory. Methods: The 14-item NEQ as a measure of severity of the night eating syndrome was translated into Korean, and then this KNEQ was evaluated. A total of 1171 participants aged 20 to 50 completed the KNEQ on the Internet. To test reliability and validity, Cronbach's alpha, correlation, simple regression, and factor analysis were used. Each item was analyzed according to Rasch-Andrich rating scale model and item difficulty, discrimination, infit/outfit, and point measure correlation were evaluated. Results: Construct validity was evident. Cronbach's alpha was .78. The items of evening hyperphagia and nocturnal ingestion showed high ability in discriminating people with night eating syndrome, while items of morning anorexia and mood/sleep provided relatively little information. The results of item analysis showed that item2 and item7 needed to be revised to improve the reliability of KNEQ. Conclusion: KNEQ is an appropriate instrument to measure severity of night eating syndrome with good validity and reliability. However, further studies are needed to find cut-off scores to screen persons with night eating syndrome.

학령기 자녀를 둔 어머니의 「부모 참 역량」척도 개발 (Development of the 「Authentic Parental Competence Scale」 for Mothers with School-age Children)

  • 정계숙;고은경;박희경;차지량
    • 가정과삶의질연구
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    • 제32권2호
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    • pp.53-75
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    • 2014
  • The purpose of this study was to develop and validate the "Authentic Parental Competence Scale" for mothers with school-age children. Based on a literature review, the study found that 'authentic parental competence' could be divided into parenting comperence, self-system competence, and social competence. In addition, the scale comprised three factors consisting of 43. The study collected data through behavior event interview(BEI), focus group interview(FGI), and three times Delphi investigation. The scale for mothers of school-age children consisted of a total of 129 items, which included three different dimensions (knowledge, skill, and attitude), and four factors were extracted from factor analysis following a survey of 362 mothers. The factors were labeled as "ability of developmental positive parenting," "ability of playing a role as a citizen and making social contributions," "ability of self-understanding and interpersonal relations," and "ability of self-growth and self-determination." In addition, the results revealed that the "Authentic Parental Competence Scale" showed an appropriate level of construct validity, reliability of the scales, distribution of item response, and item discrimination.

Mahalanobis Distance를 이용한 주행 중 차량 실내소음의 음질평가 (Sound Quality Evaluation of Interior Noise of Driving Vehicle Using Mahalanobis Distance)

  • 박상길;이해진;배철용;이봉현;오재응
    • 한국소음진동공학회논문집
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    • 제18권1호
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    • pp.57-60
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    • 2008
  • Since human listening is very sensitive to sound, for evaluating of a sound quality is required. Therefore, in the analysis for each situation, the sound evaluation is composed with sound quality factor. My researchers spends their effort to make a more reliable and more accurate of sound in term of sound quality index for various system noise. The previous methods to evaluation of the SQ about vehicle interior noise are linear regression analysis of subjective SQ metrics by statistics and the estimation of the subjective SQ values by neural network. But these are highly dependent on jury test and have many difficulties due to various environmental factors. So, to reduce jury test weight. we suggested a new method using Mahalanobis distance for SQ evaluation. Threrefore, in this study Mahalanobis distance for the vehicle interior noise was derived using the objective SQ except jury test. Finnaly, the results of the SQ evaluation was analyzed discrimination between reference and abnormal group.

내용기반으로한 이미지 검색에서 이미지 객체들의 외형특징추출 (Feature Extraction of Shape of Image Objects in Content-based Image Retrieval)

  • 조준서
    • 정보처리학회논문지B
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    • 제10B권7호
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    • pp.823-828
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    • 2003
  • 이 논문의 주요 목적은 내용을 기반으로 하는 이미지 검색에서 이미지 객체의 외형특징을 추출하는 방법을 제시하는 것이다. 대부분의 실질적인 객체들의 외형은 불규칙적이고, 이러한 객체를 수치화하기위한 일반적인 방법은 없다. 특히 전자 카타로그들은 상품들을 나타내는 많은 이미지를 포함하고 있다. 이 논문에서는 이미지 전체가 아닌 이미지내의 개별 객체들을 기반으로 특징을 추출하는 방법을 제시한다. 왜냐하면 제시된 방법은 한 이미지내에서 RLC lines을 사용하여 각 객체들의 외형을 기반으로하는 방법을 사용하기 때문이다. 실험결과는 일반적으로 가장 많이 사용하는 특징인 Texture와 비교를 했고 제시된 외형을 나타내는 변수들이 전자카타로그의 이미지 객체들을 뚜렷하게 나타냈고, 보다 정확하게 객체들을 분류하고 구별하였다.

중소병원의 의료서비스 품질, 감정적 애착, 고객만족, 행동의도의 구조적 관계 연구 - 감정적 애착, 고객만족 매개효과를 중심으로 - (Structural Relationship Between Quality of Medical Service, Patients'Emotional Attachment, Customer Satisfaction, and the Customer Behavioral Intention of Small and Medium Hospitals - Mediating Effect of Emotional Attachment and Customer Satisfaction -)

  • 이연숙;박애준
    • 보건의료산업학회지
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    • 제13권2호
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    • pp.27-38
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    • 2019
  • Objectives: The purpose of this study was to investigate the relationship between medical service quality, emotional attachment, customer satisfaction, and customer behavioral intention of small and medium hospitals. Methods: 228 patients who have used small and medium hospitals' medical services were selected. The analysis methods used were confirmatory factor analysis, validation of discrimination, path analysis, and bootstrapping using SPSS 23 and AMOS 23. Results: As a result of the hypothesis test, reliability, responsiveness, and assurance were found to have a positive (+) influence on emotional attachment and customer satisfaction, while empathy had a positive (+) influence on emotional attachment only. Emotional attachment had a positive (+) influence on customer satisfaction and behavioral intention, and customer satisfaction had a positive (+) influence on behavioral intention. Conclusions: Medical service providers in small and medium hospitals should recognize that increasing customer satisfaction based on emotional attachment is a pathway to customer acquisition and, ultimately, a way to promote effective management.

Self-determination Degree Difference Analysis According to the Subject Selection Criteria of General High School Students

  • Kim, Eun-Mi
    • International journal of advanced smart convergence
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    • 제11권3호
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    • pp.119-131
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    • 2022
  • The purpose of this study is to analyze the difference in the degree of self-determination between the criteria that general high school students consider important when selecting subjects (hereinafter referred to as 'importance') and the criteria that are actually applied when selecting subjects (hereinafter referred to as 'implementation'), based on the existing motivation type discrimination scale and subject selection criteria scale. As a result of analysis based on the data of a total of 786 high school students, the degree of self-determination was found to be different for all 34 questions and 8 factors in importance and implementation. In general, the questions and factors showed a simple structure with the motivation types and showed the lowest correlation with the motivations at both ends of the self-determination continuum. Among the factors that students consider important when selecting subjects and the factors that are actually applied, the 'SAT' factor showed the highest positive correlation with identification control. In addition, it was found that autonomous subject selection was more preferred than subject selection based on extrinsic motivation. These results are not only meaningful as the first study to analyze the degree of self-determination in the subject selection of high school students, but also can be used as useful data for customized subject selection guidance according to the degree of self-determination. The implications of this study and suggestions for follow-up studies were discussed.

가중치 산출방법에 따른 고객만족도지수의 비교 (Comparison of Customer Satisfaction Indices Using Different Methods of Weight Calculation)

  • 이상준;김용태;김성윤
    • 디지털융복합연구
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    • 제11권12호
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    • pp.201-211
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    • 2013
  • 본 연구는 다양한 가중치 산출방법을 적용하여 각 차원별 가중치 및 고객만족도지수를 비교하고 시사점을 밝혀보고자 한다. 이를 위해 가중치 산출방법을 주관적 방법과 통계적 방법으로 구분하고, 다시 주관적 방법은 고정총합법, 그리고 통계적 방법은 상관분석, 회귀분석, 주성분분석, 요인분석, 구조방정식으로 세분화하였다. 연구결과 주관적 방법과 통계적 방법에 의한 가중치는 서로 차이가 있는 것으로 나타났고, 분석방법에 따른 가중치의 순위는 유사한 패턴으로 구분되었다. 그리고 가중치 산출방법에 따른 각 차원별 가중치는 큰 편차를 보여 차원간의 변별력 및 안정성에 차이를 나타냈다. 마지막으로 다양한 가중치 산출방법에 따른 고객만족도지수는 구조방정식, 회귀분석, 상관분석, 산술평균, 주성분분석, 고정총합법, 요인분석의 순으로 높게 나타났고, 각 방법론에 따른 고객만족도지수는 통계적으로 유의한 차이가 있는 것으로 나타났다.

Uridylate kinase as a New Phylogenetic Molecule for Procaryotes

  • Lee, Dong-Geun;Lee, Jin-Ok;Lee, Jae-Hwa
    • 한국생물공학회:학술대회논문집
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    • 한국생물공학회 2003년도 생물공학의 동향(XIII)
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    • pp.810-814
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    • 2003
  • 원핵생물 (procaryote)의 분류에 16S rRNA 유전자가 많이 이용되어 있으나 제한된 해상력과 유전자의 수에 차이가 있는 등의 문제가 있어 이를 보완할 수 있는 새로운 생체분자를 찾고 그 분류 결과는 16S rRNA의 결과와 비교하였다. COG(clusters of orthologous of protein) 알고리즘으로 42종의 원핵생물 (procaryote)에서만 발견되는 transcription elongation factor (COG0195), bacterial DNA primase (COG0358) 그리고 uridylate kinase (COG0528)를 구하였다. 이중 유사도와 유전자수를 바탕으로 새로운 분류의 키로 uridylate kinase를 설정하여 분석한 결과 16S rRNA 유전자 결과와 유사점과 차이점을 보여, uridylate kinase를 이용한 분류가 16S rRNA 유전자를 이용한 분류의 문제점을 보완하여 원핵생물의 정확한 분류에 기여할 수 있을 것으로 사료되었다.

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한국판 청소년용 삶의 이유 척도의 신뢰도와 타당도 연구 (A Study of the Reliability and Validity of the Korean Version of the Reasons for Living Inventory for Adolescents)

  • 이현정;신민섭;고혜정;곽영숙
    • Journal of the Korean Academy of Child and Adolescent Psychiatry
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    • 제25권3호
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    • pp.163-170
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    • 2014
  • Objectives : This study was conducted in order to develop the Korean version of the Reasons for Living Inventory for Adolescents (KRFL-A) and to investigate the reliability and validity of the KRFL-A. Methods : The KRFL-A, Scale for Suicidal Ideation (SSI), Beck Hopelessness Scale (BHS) and Adolescent Suicide Questionnaire (ASQ) were administered to 720 first grade high school students. We examined the test-retest reliability, internal consistency of KRFL-A, and performed factor analysis. We also evaluated the correlation between KRFL-A and other scales, and the discrimination validity of KRFL-A between suicide attempt and non-attempt groups. Results : Test-retest reliability, item-total correlation and internal consistency were all reliable. From factor analysis, three factors were extracted. The KRFL-A showed negative correlation with SSI and BHS scales. In addition, it could discriminate the suicide attempter group from the non-attempter group. Conclusion : The Korean version of the Reasons for Living Inventory was found to be reliable and valid for use in assessing the risk of suicide in adolescents.

중도입국 청소년의 학교적응에 영향을 미치는 보호요인과 위험요인 분석: 보호요인의 조절효과 (Analysis of Protective Factors and Risk Factors Affecting School Adjustment of Immigrant Youths: Moderating Effect of Protective Factors)

  • 이형하
    • 디지털융복합연구
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    • 제15권12호
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    • pp.59-70
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    • 2017
  • 본 연구는 중도입국 청소년의 학교적응에 영향을 미치는데 있어 위험요인에 대한 보호요인의 조절효과가 있는지를 알아보고자 하였다. 이를 위해 2015년 전국다문화가족실태조사 대상 중 만 9~24세 청소년 자녀 6,079명 데이터에 가중치를 적용한 69,720명을 분석하였다. 분석결과 첫째, 중도입국 청소년의 위험요인인 차별경험, 학교폭력, 우울은 학교적응에 모두 부적인 영향을 미쳤다. 보호요인인 부모관계, 자아존중감, 한국어 능력, 국적취득은 학교적응에 모두 정적인 영향을 보였다. 둘째, 중도입국 청소년의 학교적응에 있어 3개의 위험요인 가운데 우울을 조절하는 보호요인 중에는 자아존중감과 국적취득 변인, 학교폭력을 조절하는 보호요인은 부모관계, 자아존중감, 한국어 능력, 국적취득 변인으로 분석되었다. 본 연구의 분석결과를 토대로 중도입국 청소년에 대한 우울감소, 학력폭력 대처, 다양한 역량강화 프로그램 개발과 지원을 주요 사회복지적 실천방안으로 제시하였다.